– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Thu 11 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Thu 11 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Thu 11 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Warm (max 25°C on Sat afternoon, min 10°C on Thu night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Warm (max 27°C on Sun afternoon, min 11°C on Tue night). Wind will be generally light. | |||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | | | |  | | | |  | | | | |
clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | clear | some clouds | some clouds | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 15 | 17 | 14 | 16 | 20 | 17 | 23 | 25 | 22 | 25 | 27 | 24 | 25 | 26 | 21 | 18 | 19 | 17 |
min °C | 11 | 17 | 10 | 13 | 18 | 14 | 19 | 24 | 18 | 22 | 27 | 20 | 23 | 24 | 14 | 15 | 19 | 11 |
11 | 17 | 10 | 13 | 18 | 14 | 19 | 24 | 18 | 22 | 27 | 20 | 23 | 24 | 14 | 15 | 19 | 11 | |
2750 | 2750 | 2800 | 2950 | 3300 | 3250 | 3400 | 3650 | 3950 | 4050 | 4200 | 4550 | 4500 | 4400 | 3950 | 3750 | 3700 | 4050 | |
Cloud base (m) | 1950 | 2200 | 8850 | 2200 | 9550 | 9000 | 9650 | 7250 | 9500 | 6450 | 5750 | 3000 | ||||||
 | 5:05 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — |
 | — | — | 9:09 | — | — | 9:09 | — | — | 9:10 | — | — | 9:10 | — | — | 9:12 | — | — | 9:12 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 25°C on Sat afternoon, min 10°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 27°C on Sun afternoon, min 11°C on Tue night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport | |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.